Safety gas-cock



B. J. DIEHL.

SAFETY GAS COCK.

APPLICATION F1LED\APR.5,19|9.

1,335,666. Patented Mar. 30, 1920.

'f f f NITED STES FTNT FFGE.

BENJAMIN JOSEPH DIEI-IL, 0F NEW YORK, N. Y.

SAFETY GAS-COCK.

To all whom t may concern:

Be it known that l, BENJAMIN J. DIEHL, a citizen of the United States,and a resident of the city of New York, Glendale, borough of Queens, inthe county of Queens and State of New York, have invented a new andImproved Safety Gas-Cock, of which the following is a ullLolear, andexact description.

This invention relates to a gas cock, and aims to provide a device ofthis nature wherein the acccidental displacing of the Y, conventionalrubber tube from the end of such cock will result in the automaticshutting oli' of the iow of fluid through such cock.

A further object of the invention is to provide a device of this naturewherein the flow of fluid is primarily controlled by means of aconventional turn valve but wherein the nozzle of the cock has appliedto it a secondary valve which will automatically cut off' the flow offluid through such nozzle, should the tube receiving such fluid be accidentally pulled oil'.

Another object of the invention is to locate such secondary valveentirely on the outside of the nozzle, so that the same may be readilyaccessible.

Reference is had to the accompanying drawings which represent oneractical embodiment of my invention, an' in which- Figure 1 is `a sideelevation partly in section of a cock with the secondary valve in openposition and the mouthpiece of a rubber tube applied to such cock;

Fig. 2 1s a side elevational View of the cock with the tube removed andthe secondary valve closed; and v Fig. 3 is a plan view of the nozzle asillustrated in Fig. 2.

In these drawings 1 designates the conven tional wall pipe, which isprovided with a cock 2 including the usual turn valve 3 operated bymeans of a finger piece 4. The

cock 2 is provided on the outside of said` Specification of LettersPatent.

closed position by means of a spring 11, which comprises a pair of legsjoined together at their upper ends and bearing against the upper faceof the cap, as indicated at 12, the portion intermediate theirextremities being looped around the hinge 13 securing the cap 9 betweenthe lugs 8. i

ln operation it will now be seen that upon a tube being applied to thenozzle 5 of the cock 2 the cap 9 will be swung outwardly, so as topermit an unrestricted How of the fluid through the bore of the nozzle,by virtue of the fact that the inner face of the tube will engage thelug 10; and upon such tube-being slid upon the nozzle 5 the lugv 10 willbe swung rearwardly and downwardly, .simultaneously raising the cap 9from out of engagement with the inclined face 6 until the lug 10 lies inthe recess 7, at which position the cap 9 will be in the positionindica-ted in Fig. 1.

Should now the tube become accidentally displaced with the Valve 3 openand the fluid ejecting from the nozzle 5, the tube will, of course,disengage the lug 10 and permit the spring 11 to swing the cap 9 firmlyinto engagement with the inclined Jface 6 of the nozzle 5 andeifectually prevent the escape of any further fluid from such nozzle.

The value of this invention will readily be appreciated, in view of thegreat number of fatalities which occur every year caused by a piece oftubing becoming disconnected from a cock and permitting, without theknowledge of the occupants of the room, the escape of gas into the roomwith very serious consequences.

It will be further appreciated that the seating of the cap 9 against theinclined face 6 of the nozzle 5 will be such that no escape of fluid cantake place, for the reason that the pressure ina gas system is `veryslight and, further, by reason of the fact that the bore of the nozzle 5is comparatively small and the pressure of the fluid therein could,hence, not exert very great force against the action of the spring 11.

Having thus described my invention, I lclaim as new and desire to secureby Letters Patent:

1. Al gas cock, including a nozzle, a pair of lugs integral with andextending beyond Patented Mar. 30, 1929.

Application led April 5, 1919. Serial No. 287,878.

the upper end of such nozzle, and e cap recess, e cap hingedly mountedbetween such hi'ngedly 4mounted between sucli lugs and lugs, and aluglintegral wth'such cap and being adapted to close such end.extendingbeyond the point of hinging,v the 10 2. A gas cock, including anozzle provided recess heilig adapted to receive the lug when 5 with arecess in its uppermost portion, a pair the cap is yin open position.

of lugs integral with such nozzle and pro- Y y jeeting outwardly oneupon each Side of said BENJAMN JOS-EPH- DIEHL.

